Machine tool



FIG. 1 is a front right side perspective view of a new machine toolshowing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof

FIG. 4 is a left elevation view thereof

FIG. 5 is a right elevation view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines in the drawings depict unclaimed environmental subjectmatter.

The ornamental design for a machine tool, as shown and described.